结构列表中的内存错误(存储未知)

memory error in struct list (storage uknown)

我正在尝试编译此代码,但出现内存错误:list1.c:25:15: 错误:‘cnodo’ 的存储大小未知 结构 nobo cnodo;

谁能告诉我这个错误的根源是什么以及如何避免它?

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

struct nodo {
    int info;
    struct nodo *prec;
    struct nodo *succ;
    } ;
typedef struct nodo nodo;




void stampa (struct nodo *p);


int main (void) {

    struct nodo *p;


    struct nodo anodo;
    struct nodo bnodo;
    struct nobo cnodo;

    anodo.info = 99;
    anodo.prec = NULL;
    anodo.succ = NULL;



    bnodo.info = 1010;
    bnodo.prec = NULL;
    bnodo.succ = NULL;


    cnodo.info = 1020;
    cnodo.prec = NULL;
    cnodo.succ = NULL;

    anodo.succ = &bnodo;    
    bnodo.prec = &anodo;
    bnodo.succ = &cnodo;    
    cnodo.prec = &bnodo;

    p = &anodo;

    stampa(p);


    return 0;

    }


void stampa (struct nodo *p) {

    while (p != NULL) {

        printf("\n nodo value is : %d \n ", p -> info);
        p = p -> succ;

        }
    }

因为

struct nodo cnodo;

没有

struct nobo cnodo;
     /*  ^ d not b
struct nobo cnodo;

应该是

struct nodo cnodo;

(打字错误)

你打错了。变化

 struct nobo cnodo;

struct nodo cnodo;